1. TENTACLE is a sludge doom band from Boston. 2. Tentacle is a Scottish progressive Rock Band, Their First album The Angel of Death produced by Jim West and recorded in 1971.. Not Much other Info exists about the Band. Fans of Dark will love the Heavy Distortion on this one. This album is a fantastic relic of heavy progressive rock with the blistering 20+ minute opening suite 'My Destiny - My Faith' determining the flow of the rest of the album.